76665127644 has 96 divisors (see below), whose sum is σ = 230267824640. Its totient is φ = 21604247424.

The previous prime is 76665127589. The next prime is 76665127691. The reversal of 76665127644 is 44672156667.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 639394 + ... + 749769.

Almost surely, 2^76665127644 is an apocalyptic number.

It is an amenable number.

76665127644 is an abundant number, since it is smaller than the sum of its proper divisors (153602696996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

76665127644 is a wasteful number, since it uses less digits than its factorization.

76665127644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389256 (or 1389248 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 54.

The spelling of 76665127644 in words is "seventy-six billion, six hundred sixty-five million, one hundred twenty-seven thousand, six hundred forty-four".